400869

素因数分解:

$3^4\times 7^2\times {\mathrm{101}}^1$

素因数の和:127

約数の個数: 30

約数和(自身を含む): 703494

約数和(自身を除く): 302625

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 101, 147, 189, 303, 441, 567, 707, 909, 1323, 2121, 2727, 3969, 4949, 6363, 8181, 14847, 19089, 44541, 57267, 133623, 400869]

約数ペア:

[(1, 400869), (3, 133623), (7, 57267), (9, 44541), (21, 19089), (27, 14847), (49, 8181), (63, 6363), (81, 4949), (101, 3969), (147, 2727), (189, 2121), (303, 1323), (441, 909), (567, 707)]